CN111335931A - Colliery tunnel release scour protection drilling construction safety protection support - Google Patents
Colliery tunnel release scour protection drilling construction safety protection support Download PDFInfo
- Publication number
- CN111335931A CN111335931A CN202010282471.1A CN202010282471A CN111335931A CN 111335931 A CN111335931 A CN 111335931A CN 202010282471 A CN202010282471 A CN 202010282471A CN 111335931 A CN111335931 A CN 111335931A
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- drilling
- protective baffle
- safety protection
- drilling construction
- coal mine
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- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 238000013016 damping Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 241000561734 Celosia cristata Species 0.000 claims description 2
- 210000001520 comb Anatomy 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- Mining & Mineral Resources (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a safety protection support for pressure-relief and impact-prevention drilling construction of a coal mine tunnel, which comprises a base and a protection baffle, wherein a hydraulic cylinder and a power box are arranged on the base, an oil tank and a hydraulic pump are arranged in the power box, and the base is fixedly provided with the hydraulic cylinders which are symmetrically distributed; a piston rod is arranged above the hydraulic cylinder, a sliding block is connected to the upper portion of the piston rod through a bolt, a moving disc is arranged above the sliding block, a rotating disc is mounted above the moving disc, a placing table is connected to the upper portion of the rotating disc, a protective baffle is mounted on the placing table, protective nets are mounted on the left side face and the right side face of the protective baffle, and through holes are formed in the protective nets; the safety protection support for pressure-relief and impact-prevention drilling construction of the coal mine tunnel can prevent materials from directly impacting drilling equipment or workers; the impact resistance of the protective baffle is improved; the service life of the bracket is prolonged; the drilling depth, the drilling height, the drilling left-right position and the drilling horizontal inclination can be effectively changed.
Description
Technical Field
The invention relates to the technical field of coal mine tunnel construction safety, in particular to a safety protection support for coal mine tunnel pressure relief and scour prevention drilling construction.
Background
With the gradual reduction of resources of shallow coal resources, China gradually enters the exploitation of deep coal resources, and is influenced by factors such as mining depth and geological structure, the frequency and intensity of impact ground pressure during deep exploitation are rapidly increased, the degree of harm is more serious, and the coal mining safety hazard is serious. Therefore, effective control of rock burst is required, and at present, the adoption of the drilling pressure relief method is an effective measure for controlling the occurrence of rock burst.
When the drilling pressure relief method is adopted for construction, as the drill hole approaches a high stress zone, the frequency and the strength of the phenomena of drilling holes and the like are enhanced along with the increase of energy accumulated in the coal body. After the coal body is drilled in the drill hole, a crushing area which is much larger than the diameter of the drill hole is formed around the drill hole due to the release of the stress of the coal body near the wall of the drill hole, and the amount of the coal dust is also increased rapidly. Under the action of nearby high stress, pulverized coal can be rapidly sprayed out to cause casualties and equipment damage, so that the effective pressure-relief anti-impact drilling protection measure has important significance for ensuring personnel safety and equipment integrity.
In addition, during drilling construction, due to a series of requirements such as drilling positions and construction parameters, the construction positions, the drilling heights and the drilling angles need to be continuously adjusted, and the positions of the drilling machines need to be continuously changed or moved during construction, so that great difficulty is brought to construction workers.
Disclosure of Invention
The invention aims to provide a safety protection support for pressure relief, impact prevention and drilling construction of a coal mine tunnel, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a safety protection support for pressure relief, impact prevention and drilling construction of a coal mine tunnel comprises a base and a protection baffle, wherein a hydraulic cylinder and a power box are arranged on the base, an oil tank and a hydraulic pump are arranged in the power box, the hydraulic cylinders which are symmetrically distributed are fixed on the base, and the hydraulic cylinders are connected with the hydraulic pump; the pneumatic cylinder top is equipped with the piston rod, and piston rod top bolted connection has the slider top is equipped with the movable disk the rotary disk is installed to the movable disk top the rotary disk top is connected with places the platform place the bench and install guard flap, install the protection network on the guard flap left and right sides face, and seted up the through-hole on the protection network.
Preferably, the inside threaded rod that can take place relative rotation that is equipped with of removal dish lower extreme, the slider suit just constitutes screw nut pair on the threaded rod, and the slider can take place relative movement with the removal dish, driving motor is installed through the bolt to removal dish bottom, and constitutes synchronous rotation through gear and threaded rod, the gear suit is at the threaded rod middle part.
Preferably, the side of the threaded rod is provided with at least one guide rod, the guide rod is fixedly connected with the movable disk and is in sliding fit with the sliding block.
Preferably, the bottom surface of the rotating disc is connected with the moving disc through a ball, a first damping gap is formed between the rotating disc and the moving disc, and the rotating disc is an electric rotating disc.
Preferably, place a bottom surface equidistance and be equipped with the connecting piece, the connecting piece cross-section is "protruding" style of calligraphy, the convex part cover of connecting piece is equipped with the spring, the other end and the mount pad of spring link to each other, the connecting piece mountable is in the mount pad, the mount pad set up on the surface of rotary disk and with the connecting piece one-to-one form the second shock attenuation seam between rotary disk and the place platform.
Preferably, the bottom of the protective baffle is provided with a plug connector, the side view section of the protective baffle is semicircular, the front side and the rear side of the protective baffle are inserted into the placing table through the plug connector, and the bottom end of the plug connector is installed in a circular arc shape.
Preferably, the inboard upper portion of guard flap is equipped with the first reinforcing plate that is the level and places, install the second reinforcing plate that the slope was placed in the guard flap of first reinforcing plate both sides, and all be provided with between first reinforcing plate and second reinforcing plate and the guard flap medial surface and be the cockscomb structure strengthening rib.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the protective baffle and the protective net, the materials are prevented from directly acting on drilling equipment and field operation personnel;
2. the impact resistance of the protective baffle is improved and the safety and reliability of protective measures are enhanced by arranging the reinforcing plate and the reinforcing ribs;
3. through the arrangement of the springs, the balls and the damping seams, impact force during blanking is not reduced, damage of vibration generated by the drilling equipment during working on the support is reduced, and the service life of the support is prolonged;
through the hydraulic cylinder, the sliding block, the threaded rod, the rotating disk and the like, parameters such as drilling depth, drilling height, drilling position, construction angle and the like can be adjusted quickly and accurately according to actual conditions on site.
This safety protection support for pressure relief, impact prevention and drilling construction of coal mine tunnels, the structure sets up rationally, and the safety work of assurance pressure relief, impact prevention and drilling construction that can be better guarantees that personnel's safety and equipment are intact when the operation, guarantees mine safety high-efficient production.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic side view of a structural protective shield of the present invention;
FIG. 4 is a schematic structural view of the protective net of FIG. 3 with the protective net removed;
FIG. 5 is an enlarged view of the structure A of the present invention;
fig. 6 is an enlarged view of the structure B of the present invention.
In the figure: 1. a base; 2. a hydraulic cylinder; 3. a slider; 4. a power box; 5. a drive motor; 6. a piston rod; 7. a protective baffle; 8. a placing table; 9. rotating the disc; 10. a movable tray; 11. an oil tank; 12. a gear; 13. a hydraulic pump; 14. a threaded rod; 15. a protective net; 16. a first reinforcing plate; 17. reinforcing ribs; 18. a through hole; 19. a mounting seat; 20. a plug-in unit; 21. a second reinforcing plate; 22. a ball bearing; 23. a first shock-absorbing slit; 24. a second shock-absorbing slit; 25. a connecting member; 26. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a safety protection support for pressure relief, impact prevention and drilling construction of a coal mine roadway comprises a base 1 and a protection baffle 7, wherein a hydraulic cylinder 2 and a power box 4 are arranged on the base 1, an oil tank 11 and a hydraulic pump 13 are arranged in the power box 4, the hydraulic cylinders 2 which are symmetrically distributed are fixed on the base 1, the hydraulic cylinder 2 is connected with the hydraulic pump 13, a piston rod 6 is arranged above the hydraulic cylinder 2, a sliding block 3 is connected above the piston rod 6 through a bolt, a moving disc 10 is arranged above the sliding block 3, a rotating disc 9 is arranged above the moving disc 10, a placing table 8 is connected above the rotating disc 9, the protection baffle 7 is arranged on the placing table 8, protection nets 15 are arranged on the left side surface and the right side surface of the protection baffle 7;
a threaded rod 14 capable of rotating relatively is arranged in the lower end of the movable disk 10, the sliding block 3 is sleeved on the threaded rod 14 and forms a screw-nut pair, the sliding block 3 and the movable disk 10 can move relatively, a driving motor 5 is installed at the bottom of the movable disk 10 through a bolt and forms synchronous rotation with the threaded rod 14 through a gear 12, the model of the driving motor 5 can be Y132M-4, and the gear 12 is sleeved in the middle of the threaded rod 14, so that when the driving motor 5 is started, the threaded rod 14 can be driven to rotate so as to move relative to the sliding block 3;
the side of the threaded rod 14 is provided with at least one guide rod which is fixedly connected with the movable disk 10 and is sleeved with the sliding block 3 in a sliding manner, and the guide rods are arranged to provide balance guarantee for the movement of the movable disk 10;
the bottom surface of the rotating disc 9 is connected with the moving disc 10 through the ball bearings 22, a first damping slot 23 is formed between the rotating disc 9 and the moving disc 10, the rotating disc 9 is an electric rotating disc, and the types of the rotating disc 9 can be selected from LS200A, LS200T and LS 200G;
connecting pieces 25 are equidistantly arranged on the bottom surface of the placing table 8, the cross sections of the connecting pieces 25 are in a convex shape, springs 26 are sleeved on the convex parts of the connecting pieces 25, the other ends of the springs 26 are connected with the mounting seat 19, the connecting pieces 25 can be mounted in the mounting seat 19, the mounting seat 19 is arranged on the surface of the rotating disc 9 and corresponds to the connecting pieces 25 one by one, and second damping gaps 24 are formed between the rotating disc 9 and the placing table 8;
the bottom of the protective baffle 7 is provided with a plug connector 20, the side view cross section of the protective baffle 7 is semicircular, the front side and the rear side of the protective baffle 7 are inserted on the placing table 8 through the plug connector 20, and the bottom end of the plug connector 20 is installed in an arc shape;
the upper part of the inner side of the protective baffle 7 is provided with a horizontally arranged first reinforcing plate 16, the protective baffle 7 on two sides of the first reinforcing plate 16 is internally provided with a second reinforcing plate 21 which is obliquely arranged, and saw-toothed reinforcing ribs 17 are arranged between the first reinforcing plate 16, the second reinforcing plate 21 and the inner side of the protective baffle 7, the impact resistance of the protective baffle 7 is improved by arranging the first reinforcing plate 16, the second reinforcing plate 21 and the reinforcing ribs 17, the structure is reasonable, and the protective baffle 7 and the protective net 15 are arranged to prevent materials from directly acting on drilling equipment and construction workers;
through the arrangement of the spring 26, the ball 22, the first damping seam 23 and the second damping seam 24, the impact force of blanking is buffered, the influence of vibration generated by equipment during pressure relief and impact prevention drilling construction on the support can be reduced, and the service life of the support is prolonged;
when the protective baffle 7 is impacted, one part of impact force borne by the impact part is downwards transmitted to the first reinforcing plate 16 or the second reinforcing plate 21 through the zigzag reinforcing ribs 17, the other part of impact force is transmitted to the placing table 8 through the protective baffle 7 and the plug-in components 20, the plug-in components 20 are arc-shaped, the force is dispersed to the periphery along the arc, the downward impact force borne by the placing table 8 is reduced, the springs 26 are sleeved on the connecting pieces 25 below the placing table 8, the springs 26 are compressed to buffer the impact force, the force buffered by the springs 26 is transmitted to the rotating disc 9 through the mounting seats 19, the balls 22 arranged at the bottom of the rotating disc 9 can disperse the bearing force of the rotating shaft, the balls 22 disperse the force outwards and the periphery along the arc surface again, the stress of the moving disc 10 is reduced again, the material impact force can be effectively protected, the safe operation of pressure relief and impact prevention drilling construction can be better ensured, ensuring safe and efficient production in mines.
A special seat of the drilling machine is arranged on the placing table 8, the special seat can ensure the stability during the construction and drilling, and meanwhile, the drilling equipment can be used for obliquely drilling in a vertical plane; in addition, the corresponding positions of the placing table 8 are provided with corresponding control devices of the hydraulic cylinder 2, the rotating disc 9 and the driving motor 5, the bottom of the base 1 is provided with a corresponding device which is suitable for the movement inside the roadway, and the corresponding parts are subjected to explosion-proof treatment, and the design of the part is available to the skilled person without any creative effort, so the part is not elaborated in the technical scheme.
The working principle is as follows: when using this adopt release scour protection drilling construction safety protection support, install drilling equipment on placing the special seat of platform 8, drilling equipment's drill bit part and drilling rod can stretch out from through-hole 18 on the protection network 15, pneumatic cylinder 2 can lifting piston rod 6, realize the regulation to the orifice height, realized carrying out release scour protection drilling construction on the co-altitude, rotary disk 9 can be rotatory on removing dish 10, realize two group constructions in tunnel through rotatory same place, can guarantee that the construction drilling is in on same level simultaneously. Slider 3 can slide in removal dish 10, can realize constructing different hole depth release scour protection drilling, protective baffle 7 protection drilling equipment and constructor do not receive the buggy that it drilled out and the coal petrography body of tunnel roof and lane group break away from the threat that causes, protective baffle 7 receives the impact force to spread via plug connector 20 to placing platform 8, cushion by the spring 26 of placing platform 8 bottom again, reduce the support atress, this is exactly this whole process of release scour protection drilling construction safety protection support work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a coal mine tunnel release scour protection drilling construction safety protection support, includes base (1) and guard flap (7), its characterized in that: the hydraulic cylinder (2) and the power box (4) are arranged on the base (1), an oil tank (11) and a hydraulic pump (13) are arranged in the power box (4), the hydraulic cylinders (2) which are symmetrically distributed are fixed on the base (1), and the hydraulic cylinders (2) are connected with the hydraulic pump (13); pneumatic cylinder (2) top is equipped with piston rod (6), and piston rod (6) top bolted connection has slider (3) top is equipped with removes dish (10) remove dish (10) top and install rotary disk (9) top is connected with places platform (8) place and install guard flap (7) on platform (8), install protection network (15) on guard flap (7) the left and right sides face, and seted up through-hole (18) on protection network (15).
2. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 1, its characterized in that: remove the inside threaded rod (14) that can take place relative rotation of dish (10) lower extreme, slider (3) suit is on threaded rod (14) and constitute screw-nut pair, and slider (3) can take place relative movement with removal dish 10, driving motor (5) are installed through the bolt to removal dish (10) bottom, and constitute synchronous rotation through gear (12) and threaded rod (14), gear (12) suit is at threaded rod (14) middle part.
3. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 2, characterized in that: the side of the threaded rod (14) is provided with at least one guide rod, the guide rod is fixedly connected with the movable disk (10) and is sleeved with the sliding block (3) in a sliding manner.
4. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 3, characterized in that: the bottom surface of the rotating disc (9) is connected with the moving disc (10) through a ball (22), a first damping gap (23) is formed between the rotating disc (9) and the moving disc (10), and the rotating disc (9) is an electric rotating disc.
5. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 4, its characterized in that: place platform (8) bottom surface equidistance and be equipped with connecting piece (25), connecting piece (25) cross-section is "protruding" style of calligraphy, the convex part cover of connecting piece (25) is equipped with spring (26), the other end and mount pad (19) of spring (26) link to each other, connecting piece (25) mountable is in mount pad (19), mount pad (19) set up on the surface of rotary disk (9) and with connecting piece (25) one-to-one rotary disk (9) and place and form second shock attenuation seam (24) between platform (8).
6. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 5, characterized in that: the protective baffle is characterized in that a plug connector (20) is arranged at the bottom of the protective baffle (7), the side view cross section of the protective baffle (7) is semicircular, the front side and the rear side of the protective baffle (7) are connected with a placing table (8) in an inserting mode through the plug connector (20), and the bottom end of the plug connector (20) is installed in an arc mode.
7. The coal mine tunnel pressure relief scour protection drilling construction safety protection support of claim 6, characterized in that: the utility model discloses a safety protection device, including protective baffle (7), first reinforcing plate (16) that are the level and place are equipped with on the inboard upper portion of protective baffle (7), install second reinforcing plate (21) that the slope was placed in protective baffle (7) of first reinforcing plate (16) both sides, and all be provided with between first reinforcing plate (16) and second reinforcing plate (21) and protective baffle (7) medial surface and be cockscomb structure strengthening rib (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282471.1A CN111335931A (en) | 2020-04-12 | 2020-04-12 | Colliery tunnel release scour protection drilling construction safety protection support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282471.1A CN111335931A (en) | 2020-04-12 | 2020-04-12 | Colliery tunnel release scour protection drilling construction safety protection support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111335931A true CN111335931A (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010282471.1A Pending CN111335931A (en) | 2020-04-12 | 2020-04-12 | Colliery tunnel release scour protection drilling construction safety protection support |
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| CN (1) | CN111335931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921983A (en) * | 2021-02-01 | 2021-06-08 | 安徽建筑大学 | Temporary supporting structure for deep foundation pit engineering warehouse-dividing construction |
-
2020
- 2020-04-12 CN CN202010282471.1A patent/CN111335931A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921983A (en) * | 2021-02-01 | 2021-06-08 | 安徽建筑大学 | Temporary supporting structure for deep foundation pit engineering warehouse-dividing construction |
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